Num Numbers, chapter Book of Numbers, chapter 26
The Bnei Yehudah were Er and Onan; and Er and Onan died in Eretz Kena'an. And the Bnei Yehudah after their Mishpekhot were: of Shelah, the Mishpakhat HaShelani; of Peretz, the Mishpakhat HaPartzi; of Zerach, the Mishpakhat HaZarchi. And the Bnei Peretz were: of Chetzron, the Mishpakhat HaChetzroni; of Chamul, the Mishpakhat HeChamuli.